diff --git a/build.xml b/build.xml
index 4356160b2..51a5b2ce3 100644
--- a/build.xml
+++ b/build.xml
@@ -54,7 +54,7 @@
 
   <property name="manifest" value="src/etc/manifest"/>
   
-  <property name="unfiltered.files" value="**/*.gif,**/*.jpg,**/*.ico"/>
+  <property name="unfiltered.files" value="**/*.gif,**/*.jpg,**/*.ico,**/*.pdf"/>
 
 
   <!--